/*
 *  Copyright (C) 2010 Pete Reisinger <p.reisinger@gmail.com>.
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package paypalnvp.fields;

import java.util.HashMap;
import java.util.Map;

/**
 * EbayItemPaymentDetailsItem request fields
 * 
 * @author Pete Reisinger
 *         <p.reisinger@gmail.com>
 */
public final class EbayPaymentItem implements RequestFields {

	/** map that holds name value pair request values */
	private final Map<String, String> nvpRequest;

	public EbayPaymentItem() {
		nvpRequest = new HashMap<String, String>();
	}

	/**
	 * Auction item number. Character length: 765 single-byte characters
	 * 
	 * @param itemNumber
	 * @throws IllegalArgumentException
	 */
	public void setItemNumber(String itemNumber)
			throws IllegalArgumentException {

		if (itemNumber.length() > 765) {
			throw new IllegalArgumentException("Item number can be maximum "
					+ "765 characters long.");
		}
		nvpRequest.put("L_EBAYITEMNUMBER", itemNumber);
	}

	/**
	 * Auction transaction identification number. Character length: 255
	 * single-byte characters
	 * 
	 * @param transactionNumber
	 * @throws IllegalArgumentException
	 */
	public void setTransactionNumber(String transactionNumber)
			throws IllegalArgumentException {

		if (transactionNumber.length() > 255) {
			throw new IllegalArgumentException("Transaction number can be "
					+ "maximum 255 characters long.");
		}
		nvpRequest.put("L_EBAYITEMAUCTIONTXNID", transactionNumber);
	}

	/**
	 * Auction order identification number. Character length: 64 single-byte
	 * characters
	 * 
	 * @param orderId
	 * @throws IllegalArgumentException
	 */
	public void setOrderId(String orderId) throws IllegalArgumentException {

		if (orderId.length() > 64) {
			throw new IllegalArgumentException("Order id can be maximum 64 "
					+ "characters long.");
		}
		nvpRequest.put("L_EBAYITEMORDERID", orderId);
	}

	/**
	 * The unique identifier provided by eBay for this order from the buyer.
	 * Character length: 255 single-byte characters
	 * 
	 * @param itemCartId
	 * @throws IllegalArgumentException
	 */
	public void setItemCartId(String itemCartId)
			throws IllegalArgumentException {

		if (itemCartId.length() > 255) {
			throw new IllegalArgumentException("Item cart id can be maximum "
					+ "255 characters long.");
		}
		nvpRequest.put("L_EBAYITEMCARTID", itemCartId);
	}

	public Map<String, String> getNVPRequest() {
		return new HashMap<String, String>(nvpRequest);
	}

	@Override
	public String toString() {

		return "instance of EbayPaymentDetailsItem class with the values: "
				+ "nvpRequest: " + nvpRequest.toString();
	}
}
